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Wear properties and synthesis of CrFeNiMoTi high entropy alloy coatings produced by TIG process
Indian Journal of Engineering & Materials Sciences ( IF 0.615 ) Pub Date : 2020-09-23
Serkan Islak, Özkan Eski, Vahdettin Koç, Cihan Özorak

The aim of this study is to investigate wear and microstructure properties of CrFeNiMoTi high entropy alloy coating produced by using tungsten inert gas (TIG) process on the medium carbon steel. The coatings have been compared in terms of their phase composition, microstructure, and hardness. Phase compound and microstructure of coating layers have been examined by using X-ray diffractometer (XRD), scanning electron microscope (SEM), and optical microscope (OM). The images show that the coatings have consisted of the cladding zone, interface zone, and heat affected zone. Also, the microstructure of the coating has been mainly composed of dendrite and discontinuous interdendritic segregation. The surface microhardness of this high entropy alloys up to 450 HV0.3, has been about 2.5 times as the substrate. The wear behaviour of the specimens has been compared through dry sliding wear tests under the same conditions. Average coefficient of friction values of the high entropy alloy (HEA) coating has been obtained at relatively low levels.

中文翻译:

TIG工艺制备的CrFeNiMoTi高熵合金涂层的磨损性能与合成

这项研究的目的是研究在中等碳钢上使用钨极惰性气体(TIG)工艺生产的CrFeNiMoTi高熵合金涂层的磨损和组织性能。已经比较了涂层的相组成,微观结构和硬度。已经通过使用X射线衍射仪(XRD),扫描电子显微镜(SEM)和光学显微镜(OM)检查了涂层的相化合物和微观结构。图像显示涂层由包层区,界面区和热影响区组成。而且,涂层的微观结构主要由枝晶和不连续的枝晶间偏析组成。高达450 HV0.3的这种高熵合金的表面显微硬度约为底材的2.5倍。通过相同条件下的干式滑动磨损测试,比较了样品的磨损行为。高熵合金(HEA)涂层的平均摩擦系数值已在相对较低的水平上获得。
更新日期:2020-09-23
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